This chemical is widely used in the field of biochemistry and molecular biology as a spin label in electron paramagnetic resonance (EPR) spectroscopy. It helps in studying the structure, dynamics, and interactions of biological molecules such as proteins and nucleic acids. Its stable free radical nature allows it to act as a probe, providing insights into molecular motion and conformational changes. Additionally, it is utilized in materials science for investigating polymer dynamics and in the development of advanced materials with specific magnetic properties. Its applications also extend to the study of oxidative stress and free radical mechanisms in various biological systems.